The father mysteriously disappeared, the mother committed suicide, and the hidden truth was discovered from the clues. Chai Nana, the master of decryption who inherited the mysterious Yangyu Ukey, turned into a socialite and decided to serve the man with her beauty. She made a hidden rule deal with Mr. Mo, the most powerful boss in S City. Who wants to summon the warm side of the man with a kiss! One is cold as ice, the other is warm...